Why building-energy optimisation matters, market by market

Singapore

The Mandatory Energy Improvement (MEI) regime (from Sep 2025) can fine non-compliant buildings up to SGD 150,000, while the GMIS-EB 2.0 grant funds up to 50% of efficiency upgrades and a rising carbon tax (SGD 45/tCO₂e from 2026) turns verified savings into cost avoidance.

Hong Kong

The Buildings Energy Efficiency Ordinance (Cap. 610, 2025 amendment) requires prescribed buildings to publicly disclose mandatory energy-audit results by 20 Sep 2026, on a 5-year cycle. Zero WHT and zero VAT make it APAC’s most attractive market for shared-savings models.

Thailand

The Energy Conservation & Promotion Act mandates an EMS and annual DEDE reporting for designated buildings (≥1,000 kW). DEDE subsidies of up to THB 1,000,000 per building are available, and a 2024 Climate Change Act introduces carbon pricing from 2026–27.

Philippines

The Energy Efficiency and Conservation Act (2019) mandates energy audits and an EMS for large consumers, with annual Department of Energy reporting for designated establishments.

Malaysia

The Energy Efficiency and Conservation Act and EMEER regulations mandate an EMS for large consumers, and the National Energy Transition Roadmap (NETR) sets efficiency targets for commercial buildings.

Vietnam

The Law on Economical and Efficient Use of Energy mandates audits and an EMS for energy-intensive facilities, with the National Green Growth Strategy setting building-efficiency targets through 2030.

Indonesia

Government Regulation 70/2009 mandates energy management for large consumers, and the National Energy Policy (KEN) sets energy-intensity reduction targets — with hospitality a priority given the concentration of international chain hotels.

Australia

Hotels with government bookings must hold a valid NABERS Energy rating from FY2026–27, and large entities must disclose Scope 2 emissions under ASRS/IFRS S2 from 2025. CEFC concessional financing can reduce upfront cost — Bookallil Advisory can help assess eligibility.

Japan

The Act on Rational Use of Energy mandates energy management for designated facilities, and Japan’s GX (Green Transformation) policy and carbon-pricing roadmap are accelerating demand for verified energy management.

South Korea

The Energy Use Rationalisation Act mandates audits and management for large consumers, and the K-ETS emissions trading scheme creates direct financial incentives for verified energy reduction.

China

The 14th Five-Year Plan sets binding energy-intensity targets for commercial buildings, the national carbon market (ETS) rewards verified reduction, and green-building standards (GB/T 50378) are increasingly mandatory.

Macau

Gaming-resort properties run large, 24/7 HVAC loads under growing ESG scrutiny from international investors. (Systems serving the gaming floor itself are excluded from scope; Enerzyz focuses on hotel, F&B, back-of-house and central plant.)

Cambodia

International hotel chains (Rosewood, Sofitel, Hyatt, Raffles) carry group-level sustainability commitments, and a tropical climate drives significant HVAC load — a strong ROI case for optimisation.

India

The Energy Conservation Act and Bureau of Energy Efficiency (BEE) mandate audits and an EMS for large consumers, and the BRSR framework requires listed companies to disclose energy consumption and intensity data.